Class VideoFrame

A decoded picture in I420: full-size luma, and both chroma planes at half the width and height, rounded up; each plane tightly packed.

Inheritance

object

VideoFrame

Inherited Members

object.Equals(object)

object.Equals(object, object)

object.GetHashCode()

object.GetType()

object.ReferenceEquals(object, object)

object.ToString()

Namespace: Uniform.Matrix.Video

Assembly: Uniform.Matrix.Video.dll

Syntax

public sealed class VideoFrame

Constructors

VideoFrame(int, int, byte[], byte[], byte[])

Create a picture of width by height pixels from its planes.

Declaration

public VideoFrame(int width, int height, byte[] y, byte[] u, byte[] v)

Parameters

Type	Name	Description
int	width
int	height
byte[]	y
byte[]	u
byte[]	v

Properties

ChromaHeight

Height of the chroma planes.

Declaration

public int ChromaHeight { get; }

Property Value

Type	Description
int

ChromaWidth

Width of the chroma planes.

Declaration

public int ChromaWidth { get; }

Property Value

Type	Description
int

Height

Height in pixels.

Declaration

public int Height { get; }

Property Value

Type	Description
int

Mirrored

Whether to show the picture mirrored, as a preview of one's own front camera is, like a mirror.

Declaration

public bool Mirrored { get; set; }

Property Value

Type	Description
bool

Rotation

Clockwise rotation in degrees that shows the picture upright, 0, 90, 180 or 270, e.g. from a phone held upright, whose camera sees sideways.

Declaration

public int Rotation { get; set; }

Property Value

Type	Description
int

U

Blue-difference chroma, ChromaWidth bytes per row.

Declaration

public byte[] U { get; }

Property Value

Type	Description
byte[]

V

Red-difference chroma, ChromaWidth bytes per row.

Declaration

public byte[] V { get; }

Property Value

Type	Description
byte[]

Width

Width in pixels.

Declaration

public int Width { get; }

Property Value

Type	Description
int

Y

Luma, Width bytes per row.

Declaration

public byte[] Y { get; }

Property Value

Type	Description
byte[]

Methods

CopyToBgra(Span<byte>, int)

Write the picture as 32-bit BGRA, opaque, into destination of stride bytes per row, converting from BT.601 limited range as WebRTC video is.

Declaration

public void CopyToBgra(Span<byte> destination, int stride)

Parameters

Type	Name	Description
Span<byte>	destination	At least Height rows.
int	stride	Bytes per row, at least 4 × Width.

Rotated(int)

Return the picture turned degrees clockwise, 0, 90, 180 or 270, e.g. by its Rotation to send it upright where the receiver is not told the rotation; the result has no rotation of its own.

Declaration

public VideoFrame Rotated(int degrees)

Parameters

Type	Name	Description
int	degrees

Returns

Type	Description
VideoFrame

Exceptions

Type	Condition
ArgumentOutOfRangeException	When degrees is not a quarter turn.